include/sound/hdaudio_ext.h

   1 #ifndef __SOUND_HDAUDIO_EXT_H
   2 #define __SOUND_HDAUDIO_EXT_H
   3
   4 #include <sound/hdaudio.h>
   5
   6 /**
   7  * hdac_ext_bus: HDAC extended bus for extended HDA caps
   8  *
   9  * @bus: hdac bus
  10  * @num_streams: streams supported
  11  * @hlink_list: link list of HDA links
  12  * @lock: lock for link mgmt
  13  * @cmd_dma_state: state of cmd DMAs: CORB and RIRB
  14  */
  15 struct hdac_ext_bus {
  16         struct hdac_bus bus;
  17         int num_streams;
  18         int idx;
  19
  20         struct list_head hlink_list;
  21
  22         struct mutex lock;
  23         bool cmd_dma_state;
  24 };
  25
  26 int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
  27                       const struct hdac_bus_ops *ops,
  28                       const struct hdac_io_ops *io_ops);
  29
  30 void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
  31 int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
  32 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
  33 void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
  34
  35 #define ebus_to_hbus(ebus)      (&(ebus)->bus)
  36 #define hbus_to_ebus(_bus) \
  37         container_of(_bus, struct hdac_ext_bus, bus)
  38
  39 #define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
  40         { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
  41           .api_version = HDA_DEV_ASOC, \
  42           .driver_data = (unsigned long)(drv_data) }
  43 #define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
  44         HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
  45
  46 void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
  47 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
  48
  49 void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
  50                                  bool enable, int index);
  51
  52 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
  53 struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
  54                                                 const char *codec_name);
  55
  56 enum hdac_ext_stream_type {
  57         HDAC_EXT_STREAM_TYPE_COUPLED = 0,
  58         HDAC_EXT_STREAM_TYPE_HOST,
  59         HDAC_EXT_STREAM_TYPE_LINK
  60 };
  61
  62 /**
  63  * hdac_ext_stream: HDAC extended stream for extended HDA caps
  64  *
  65  * @hstream: hdac_stream
  66  * @pphc_addr: processing pipe host stream pointer
  67  * @pplc_addr: processing pipe link stream pointer
  68  * @spib_addr: software position in buffers stream pointer
  69  * @fifo_addr: software position Max fifos stream pointer
  70  * @dpibr_addr: DMA position in buffer resume pointer
  71  * @dpib: DMA position in buffer
  72  * @lpib: Linear position in buffer
  73  * @decoupled: stream host and link is decoupled
  74  * @link_locked: link is locked
  75  * @link_prepared: link is prepared
  76  * link_substream: link substream
  77  */
  78 struct hdac_ext_stream {
  79         struct hdac_stream hstream;
  80
  81         void __iomem *pphc_addr;
  82         void __iomem *pplc_addr;
  83
  84         void __iomem *spib_addr;
  85         void __iomem *fifo_addr;
  86
  87         void __iomem *dpibr_addr;
  88
  89         u32 dpib;
  90         u32 lpib;
  91         bool decoupled:1;
  92         bool link_locked:1;
  93         bool link_prepared;
  94
  95         struct snd_pcm_substream *link_substream;
  96 };
  97
  98 #define hdac_stream(s)          (&(s)->hstream)
  99 #define stream_to_hdac_ext_stream(s) \
 100         container_of(s, struct hdac_ext_stream, hstream)
 101
 102 void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
 103                                 struct hdac_ext_stream *stream, int idx,
 104                                 int direction, int tag);
 105 int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
 106                 int num_stream, int dir);
 107 void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
 108 void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
 109 struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
 110                                            struct snd_pcm_substream *substream,
 111                                            int type);
 112 void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
 113 void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
 114                                 struct hdac_ext_stream *azx_dev, bool decouple);
 115 void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
 116
 117 int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
 118                                  struct hdac_ext_stream *stream, u32 value);
 119 int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
 120                                  struct hdac_ext_stream *stream);
 121 void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
 122                                 bool enable, int index);
 123 int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
 124                                 struct hdac_ext_stream *stream, u32 value);
 125 int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
 126
 127 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
 128 void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
 129 void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
 130 int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
 131
 132 struct hdac_ext_link {
 133         struct hdac_bus *bus;
 134         int index;
 135         void __iomem *ml_addr; /* link output stream reg pointer */
 136         u32 lcaps;   /* link capablities */
 137         u16 lsdiid;  /* link sdi identifier */
 138
 139         int ref_count;
 140
 141         struct list_head list;
 142 };
 143
 144 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
 145 int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
 146 int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus);
 147 int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
 148 void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
 149                                  int stream);
 150 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
 151                                  int stream);
 152
 153 int snd_hdac_ext_bus_link_get(struct hdac_ext_bus *ebus,
 154                                 struct hdac_ext_link *link);
 155 int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
 156                                 struct hdac_ext_link *link);
 157
 158 /* update register macro */
 159 #define snd_hdac_updatel(addr, reg, mask, val)          \
 160         writel(((readl(addr + reg) & ~(mask)) | (val)), \
 161                 addr + reg)
 162
 163 #define snd_hdac_updatew(addr, reg, mask, val)          \
 164         writew(((readw(addr + reg) & ~(mask)) | (val)), \
 165                 addr + reg)
 166
 167
 168 struct hdac_ext_device;
 169
 170 /* ops common to all codec drivers */
 171 struct hdac_ext_codec_ops {
 172         int (*build_controls)(struct hdac_ext_device *dev);
 173         int (*init)(struct hdac_ext_device *dev);
 174         void (*free)(struct hdac_ext_device *dev);
 175 };
 176
 177 struct hda_dai_map {
 178         char *dai_name;
 179         hda_nid_t nid;
 180         u32     maxbps;
 181 };
 182
 183 #define HDA_MAX_NIDS 16
 184
 185 /**
 186  * struct hdac_ext_device - HDAC Ext device
 187  *
 188  * @hdac: hdac core device
 189  * @nid_list - the dai map which matches the dai-name with the nid
 190  * @map_cur_idx - the idx in use in dai_map
 191  * @ops - the hda codec ops common to all codec drivers
 192  * @pvt_data - private data, for asoc contains asoc codec object
 193  */
 194 struct hdac_ext_device {
 195         struct hdac_device hdac;
 196         struct hdac_ext_bus *ebus;
 197
 198         /* soc-dai to nid map */
 199         struct hda_dai_map nid_list[HDA_MAX_NIDS];
 200         unsigned int map_cur_idx;
 201
 202         /* codec ops */
 203         struct hdac_ext_codec_ops ops;
 204
 205         struct snd_card *card;
 206         void *scodec;
 207         void *private_data;
 208 };
 209
 210 struct hdac_ext_dma_params {
 211         u32 format;
 212         u8 stream_tag;
 213 };
 214 #define to_ehdac_device(dev) (container_of((dev), \
 215                                  struct hdac_ext_device, hdac))
 216 /*
 217  * HD-audio codec base driver
 218  */
 219 struct hdac_ext_driver {
 220         struct hdac_driver hdac;
 221
 222         int     (*probe)(struct hdac_ext_device *dev);
 223         int     (*remove)(struct hdac_ext_device *dev);
 224         void    (*shutdown)(struct hdac_ext_device *dev);
 225 };
 226
 227 int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
 228 void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
 229
 230 #define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
 231
 232 #endif /* __SOUND_HDAUDIO_EXT_H */